Fk;. 533. Poa annua Linn. Sp. PI. 68. Low Spear grass or 

 SuMMKR-GRASS. — A low, tuftecl annual, with erect or ascendinjf, 

 somewhat flattened stems 0.5 to 3 dm. high, smooth, flat^ spread- 

 ing leaves, and short, pyramidal panicles. Spikelets (a) 3- to 

 6-flowered, about 4 mm. long, with slightly unequal empty 

 glumes and obtuse flowering glumes which are hairy on the 

 nerves below and pilose at the base. — Fields and waste places, 

 •looryards, etc., throughout the United States and British America. 

 [Europe.] April-September. 



